Author Interviews, Blood Pressure - Hypertension, Exercise - Fitness, Heart Disease, JAMA / 05.08.2021

MedicalResearch.com Interview with: Fernando Ribeiro PhD School of Health Sciences Institute of Biomedicine - iBiMED University of Aveiro Aveiro, Portugal MedicalResearch.com: What is the background for this study? What are the main findings? Response: Resistant hypertension is a puzzling problem without a clear solution. The available treatment options to lower blood pressure, namely medication and renal denervation, have had limited success, making nonpharmacological strategies good candidates to optimize the treatment of this condition. Exercise training is consistently recommended as adjuvant therapy for patients with hypertension, yet, it is with a great delay that the efficacy of exercise training is being tested in patients with resistant hypertension. Having that in mind, the EnRicH trial was designed to address whether the benefits of an exercise intervention with proven results in hypertensive individuals are extended to patients with resistant hypertension, a clinical population with low responsiveness to drug therapy. Exercise training was safe and associated with a significant and clinically relevant reduction in 24-hour, daytime ambulatory, and office blood pressure compared with control (usual care). (more…)
AHA Journals, Author Interviews, Blood Pressure - Hypertension, Kidney Disease / 04.08.2021

MedicalResearch.com Interview with: Maria Luisa S. Sequeira Lopez, MD, FAHA Harrison Distinguished Professor in Pediatrics and Biology University of Virginia Charlottesville, VA 22908 MedicalResearch.com: What is the background for this study? Response: The renin-angiotensin system (RAS) is crucial in the regulation of the blood pressure (BP). Synthesis and secretion of renin is the key regulated event in the operation of the RAS. One of the main mechanisms that control renin synthesis and release is the baroreceptor mechanism whereby a decrease in blood pressure results in increased release of renin by juxtaglomerular (JG) cells. In spite of its enormous importance, the nature and location of the renal baroreceptor was still unknown. This was due in great part to the lack of appropriate in vitro and in vivo models to confidently allow tracking of the fate and isolation of renin cells, and the lack of tools to study the chromatin in scarce cells. (more…)
AHA Journals, Author Interviews, Blood Pressure - Hypertension, Columbia / 27.07.2021

MedicalResearch.com Interview with: George Hripcsak, MD, MS. Chair and Vivian Beaumont Allen Professor of Biomedical Informatics Department of Biomedical Informatics, Columbia University Irving Medical Center New York, NY MedicalResearch.com: What is the background for this study? Response: ACE inhibitors and ARBs are anti-hypertension drugs that have related yet distinct mechanisms of action, and they are both recommended as first-line therapies for treating hypertension. There have been no large head-to-head comparisons of ACE inhibitors and ARBs, although there are several studies with limited size and often restricted (e.g., high-risk) populations. While there are some conflicting results in the literature, the current evidence seems to indicate that they are similar in effectiveness but that ACE inhibitors have more side effects (e.g., cough and angioedema). (more…)
AHA Journals, Author Interviews, Blood Pressure - Hypertension, Cognitive Issues, Memory / 21.06.2021

MedicalResearch.com Interview with: Daniel A. Nation, Ph.D., Associate Professor of Psychological Science Institute for Memory Impairments and Neurological Disorders University of California, Irvin MedicalResearch.com: What is the background for this study? Response: Hypertension is a risk factor for cognitive decline and dementia, and treatment of hypertension has been linked to decreased risk for cognitive impairment. Prior studies have attempted to identify which specific type of antihypertensive treatment conveys the most benefit for cognition, but findings have been mixed regarding this question.  We hypothesized that antihypertensive drugs acting on the brain angiotensin system may convey the greatest benefit since they affect the brain angiotensin system that has been implicated in memory function. (more…)
Author Interviews, Blood Pressure - Hypertension, JAMA, USPSTF / 07.05.2021

MedicalResearch.com Interview with: John B. Wong, M.D. Chief Scientific Officer Vice chair for Clinical Affairs Chief of the Division of Clinical Decision Making and Primary care Clinician Department of Medicine at Tufts Medical Center   MedicalResearch.com: What is the background for this study? Response: Hypertension affects nearly half of all adults in the United States and is a major risk factor for many serious health conditions. Fortunately, by screening all adults for hypertension, clinicians can improve their patient’s health. The Task Force continues to recommend screening all adults for hypertension so that they can get the care they need to help prevent health conditions such as heart attack, stroke, and kidney failure. (more…)
AHA Journals, Author Interviews, Baylor College of Medicine Houston, Blood Pressure - Hypertension, Microbiome / 30.04.2021

MedicalResearch.com Interview with: David J. Durgan, PhD Department of Anesthesiology Baylor College of Medicine Houston, TX  MedicalResearch.com: What is the background for this study? Response: Our lab and others had previously shown that gut dysbiosis is not only associated with hypertension, but actually plays a causal role. For example we have shown in both a genetic model of hypertension as well as an obstructive sleep apnea induced model of hypertension, that transplantation of their dysbiotic microbiota into normotensive recipients induced elevations in blood pressure. With this understanding our focus shifted to two new questions 1) How can we manipulate the microbiota to improve/prevent hypertension, and 2) What are the signals originating from the microbiota that have the capability to influence host blood pressure? These questions lead to the experimental design of this study. (more…)
AHA Journals, Author Interviews, Blood Pressure - Hypertension, Dental Research / 30.03.2021

MedicalResearch.com Interview with: Francesco D’Aiuto Professor/Hon Consultant Head of Periodontology Unit UCL Eastman Dental Institute  MedicalResearch.com: What is the background for this study? Response: This study was set out to further our understanding of the link between gum disease and high blood pressure. Recent evidence suggested that individuals with gum disease had a 20-70% increased risk of hypertension and systemic inflammation seemed to be a driver in mediating this association. Further research on the matter was needed. We recruited two relatively large groups of otherwise healthy participants (without a confirmed diagnosis of hypertension) who had gum disease one and healthy gums the other. We found that diagnosis of periodontitis (gum disease) was consistently linked to higher systolic blood pressure independent of other cardiovascular risk factors. (more…)
Author Interviews, Blood Pressure - Hypertension, Pediatrics / 12.03.2021

MedicalResearch.com Interview with: Melanie Clark PhD candidate Murdoch Children's Research Institute The Royal Children's Hospital  blood-pressure-children-hypertensionMedicalResearch.com: What is the background for this study? What are the main findings? Response: Hypertension in children is a growing problem around the world, but when diagnosing hypertension, most of the time blood pressure is only measured in one arm. Our study showed that children can have a blood pressure difference between arms that may be considered significant in a clinical setting. One in four children had a difference between left and right arms that could mean that blood pressure appears normal in one arm, but in the other arm it would be classified as a high blood pressure. This means that if a doctor measures blood pressure in one arm only, a diagnosis of high blood pressure could be missed. (more…)
AHA Journals, Author Interviews, Heart Disease, Race/Ethnic Diversity, Stroke / 05.03.2021

MedicalResearch.com Interview with: Fernando D Testai, MD, PhD, FAHA Associate Professor of Neurology and Rehabilitation Stroke Medical Director University of Illinois Health MedicalResearch.com: What is the background for this study? Response: Stroke constitutes a leading cause of disability and mortality in the United States. Large observational studies have shown that up to 90% of the strokes are caused by modifiable vascular risk factors, including hypertension, diabetes mellitus, and several others. In addition, previous history of stroke is one of the most powerful predictors of recurrent stroke. Thus, controlling vascular risk factors in patients with stroke is of paramount importance. To this end, the American Heart Association and the American Stroke Association have developed specific targets for blood pressure, glycemic, and cholesterol levels. (more…)
Author Interviews, Blood Pressure - Hypertension, Kidney Disease / 24.02.2021

MedicalResearch.com Interview with: Dr. FotiKathryn Foti, PhD, MPH Postdoctoral fellow Department of Epidemiology Johns Hopkins Bloomberg School of Public Health MedicalResearch.com: What is the background for this study? Response: The Kidney Disease: Improving Global Outcomes (KDIGO) 2021 Clinical Practice Guideline for the Management of Blood Pressure (BP) in Chronic Kidney Disease (CKD) provides recommendations for the management of BP in individuals with nondialysis CKD, incorporating new evidence since the publication of its previous guideline in 2012. The 2021 KDIGO guideline recommends a target systolic BP <120 mmHg based on standardized office BP measurement. This BP goal is largely informed by the findings of the SPRINT trial which found targeting SBP <120 mmHg compared with <140 mmHg reduced the risk of cardiovascular disease by 25% and all-cause mortality by 27%. The benefits were similar for participants with and without CKD. In our study, we sought to examine the potential implications of the 2021 KDIGO guideline for BP lowering among US adults with CKD compared to the 2012 KDIGO guideline (target BP ≤130/80 mmHg in adults with albuminuria or ≤140/90 mmHg or under without albuminuria) and the 2017 American College of Cardiology/American Heart Association (target BP <130/80 mmHg) guideline. Additionally, we determined implications of the 2021 KDIGO guideline for angiotensin converting enzyme inhibitor (ACEi) or angiotensin II-receptor blocker (ARB) use for those with albuminuria (recommended at systolic BP ≥120 mmHg) compared to the 2012 KDIGO guideline (recommended at BP >130/80 mmHg).  (more…)
AHA Journals, Author Interviews, Blood Pressure - Hypertension, Heart Disease / 21.12.2020

MedicalResearch.com Interview with: Chris Clark, PhD Clinical Senior Lecturer in General Practice Primary Care Research Group St Luke's Campus, Exeter MedicalResearch.com: What is the background for this study? What are the main findings?  Response: Various individual studies have suggested that a blood pressure difference between arms is associated with increased mortality and cardiovascular events since we first reported this association in 2002. Such studies have been limited, due to smaller numbers of participants, in the conclusions that could be drawn. Therefore we sought to pool data from as many cohorts as possible to study this association in more detail.  MedicalResearch.com: What are the main findings? Should it be standard practice to measure blood pressure in both arms? Response: Systolic inter-arm difference was associated with increased all-cause and cardiovascular mortality. We found that all-cause mortality increased with inter-arm difference magnitude from a ≥5 mmHg threshold. Systolic inter-arm difference was also associated with cardiovascular events in people without pre-existing disease. This remained significant after adjustment for various internationally used cardiovascular risk scores, namely ASCVD, Framingham or QRISK2. Essentially we found that each increase of 1mmHg in inter-arm difference equated to a 1% increase for a given cardiovascular risk score. When undertaking a cardiovascular assessment, or determining which arm should be used for blood pressure measurement, it is recommended to measure both arms. (more…)
Author Interviews, Blood Pressure - Hypertension, Heart Disease, Pediatrics, USPSTF / 19.11.2020

MedicalResearch.com Interview with: Martha Kubik, Ph.D., R.N. Professor and director of the School of Nursing College of Health and Human Services at George Mason University USPSTF Task Force Member MedicalResearch.com: What is the background for this study? What are the main findings? Has the recommendation changed over the last decade? Response: High blood pressure is becoming more common among children and teens in the United States and can have serious negative health effects in childhood and adulthood, such as kidney and heart disease. However, there is not enough research to know whether treating high blood pressure in young people improves cardiovascular health in adulthood. The Task Force continued to find that there is not enough evidence to recommend for or against screening for high blood pressure in children and teens who do not have signs or symptoms. (more…)
AHA Journals, Author Interviews, Blood Pressure - Hypertension, Circadian Rhythm / 05.11.2020

MedicalResearch.com Interview with: Kazuomi Kario, MD, PhD, FACP, FACC, FAHA, FESC, FJCS Professor, Chairman Division of Cardiovascular Medicine, Department of Medicine, Jichi Medical University School of Medicine (JMU) JMU Center of Excellence, Cardiovascular Research and Development (JCARD) Hypertension Cardiovascular Outcome Prevention and Evidence in Asia (HOPE Asia) Network Shimotsuke, Tochigi, 329-0498, JAPAN MedicalResearch.com: What is the background for this study? Response: To date, it remains unclear whether disrupted blood pressure (BP) circadian rhythm is associated with adverse outcomes independent of nighttime BP. The JAMP study includes 6359 outpatient population who had ambulatory BP monitoring to evaluate the association between both nocturnal hypertension and nighttime BP dipping patterns and the occurrence of cardiovascular events in patients with hypertension. (more…)
AHA Journals, Author Interviews, Blood Pressure - Hypertension, NYU, Race/Ethnic Diversity / 16.09.2020

MedicalResearch.com Interview with: Aisha T. Langford, PhD, MPH Assistant Professor Department of Population Health Co-Director, CTSI Recruitment and Retention Core NYU Grossman School of Medicine NYU Langone Health New York, NY 10016 MedicalResearch.com: What is the background for this study? Response: In 2018, the American Heart Association (AHA) published an updated Scientific Statement on Resistant Hypertension. The term apparent treatment-resistant hypertension (aTRH) is used when pseudoresistance (e.g., white coat effect, medication nonadherence) cannot be excluded. The current study was designed to investigate if Black adults with aTRH, a group disproportionately affected by cardiovascular disease, receive evidence-based approaches to lower blood pressure as recommended in the 2018 AHA Scientific Statement. Specifically, we studied healthy lifestyle factors including not smoking, not consuming alcohol, ≥75 minutes of vigorous-intensity or ≥150 minutes of moderate or vigorous physical activity per week, and body mass index <25 kg/m2; and recommended antihypertensive medication classes among US Black adults. (more…)
Author Interviews, Blood Pressure - Hypertension, Social Issues / 01.08.2020

MedicalResearch.com Interview with: Dr. Shingo Yanagiya Hokkaido University Graduate School of Medicine Sapporo, Japan MedicalResearch.com: What is the background for this study? Response: Thank you very much for your question. Hypertension is a major risk factor for cardiovascular diseases including stroke and ischemic heart disease. Due to the relatively high prevalence of hypertension, there is an increased public burden resulting mainly from cardiovascular disease. It is well known that hypertension is associated with several lifestyle factors, including excessive intake of salt or alcohol, obesity, inactivity, and other personal attributes. Since socioeconomic status affects individual lifestyles and other factors, differences in socioeconomic status may influence the risk of hypertension. Therefore, it is important to clarify whether the risk of hypertension varies among socioeconomic classes when considering an effective strategy for preventing hypertension. Based on my research of previous reports about the relationship between household income and incident hypertension, evidence is scarce for Japan. So, we investigated this in an employed population in Japan. (more…)
Author Interviews, Blood Pressure - Hypertension, UT Southwestern / 15.04.2020

MedicalResearch.com Interview with: DaiWai Olson, PhD, RN Professor of Neurology and Neurotheraputics UT Southwestern Medical Center MedicalResearch.com: What is the background for this study? Response: This study resonates across nursing. Kat Siaron is a Neuroscience nurse who had questions about the ‘best’ location for checking blood pressure. Like so many studies this started with a clinical question: “does it make a difference where you check the blood pressure?” She applied for a nursing research fellowship and was one of 6 nurses selected. She spent about 3 months reading articles on blood pressure and looking to see if there are any similar studies. After confirming that this has not been done, she submitted her study for approval from the Institutional Review Board and started data collection. (more…)
Author Interviews, Blood Pressure - Hypertension, Heart Disease, Weight Research / 08.04.2020

MedicalResearch.com Interview with: Zhen Yang MD PhD Department of Endocrinology, Xinhua Hospital Shanghai Jiao Tong University School of Medicine Shanghai, China   MedicalResearch.com: What is the background for this study? Response: Hypertension is a major public health problem affecting more than 1 billion people worldwide. And it is the leading cause of mortality and disability globally. Startlingly, more than half of people with elevated blood pressure were unaware of their hypertensive status in numerous surveys, partly owing to hypertension rarely shows symptoms in the early stages. Hence, hypertension is a silent killer. (more…)
Author Interviews, Blood Pressure - Hypertension, Columbia, Heart Disease, JAMA / 17.02.2020

MedicalResearch.com Interview with: George Hripcsak, MD, MS Vivian Beaumont Allen Professor of Biomedical Informatics Chair, Department of Biomedical Informatics Columbia University Director, Medical Informatics Services NewYork-Presbyterian Hospital/Columbia MedicalResearch.com: What is the background for this study? Response: Diuretics are considered among the best drugs to treat hypertension, but there are no randomized studies to tell us which diuretic is best. Hydrochlorothiazide is the most frequently used diuretic for hypertension, but another drug, chlorthalidone, is gaining favor, with the most recent US hypertension guideline expressing a preference for it. Chlorthalidone is known to be longer acting and therefore perhaps more effective. Other (non-randomized) studies have been inconsistent, and some of them imply that chlorthalidone may be more effective. But other studies have shown that chlorthalidone may have more side effects. (more…)
Author Interviews, Blood Pressure - Hypertension, Brigham & Women's - Harvard, Gout / 28.01.2020

MedicalResearch.com Interview with: Stephen P. Juraschek, MD, PhD Assistant Professor, Harvard Medical School Beth Israel Deaconess Medical Center Division of General Medicine, Section for Research Boston, MA  02215 MedicalResearch.com: What is the background for this study? Response: Gout is a common complication of blood pressure treatment. Furthermore, 75% of adults with gout have hypertension. There are several classes of medications uses to treat hypertension. While prior studies have reported that calcium channel blockers like amlodipine lower uric acid, its effects on gout risk compared to other common first-line antihypertensive agents are unknown.  (more…)
Author Interviews, Blood Pressure - Hypertension, JAMA / 26.11.2019

MedicalResearch.com Interview with: Brian S. Alper, MD, MSPH, FAAFP, FAMIA Board Certifications: Family Medicine, Clinical Informatics Founder of DynaMed Vice President of Innovations and Evidence-Based Medicine Development EBSCO Health  MedicalResearch.com: What is the background for this study? Response: We often use clinical practice guidelines as a “source of truth” for decision support for healthcare professionals and even as a standard of care for medical legal considerations.  However our experience evaluating guidelines for clinical reference support finds they are often inconsistent.  We picked one of the most common conditions managed in healthcare (ie hypertension, or high blood pressure) and sought out the top clinical practice guidelines that guide care around the world.   We systematically evaluated these guidelines against 70 specific recommendations to see how often the guidelines agreed or disagreed. (more…)
AHA Journals, Author Interviews, Blood Pressure - Hypertension, Heart Disease / 05.11.2019

MedicalResearch.com Interview with: Rachel E. Climie PhD INSERM U970, Paris Cardiovascular Research Center (PARCC) Integrative Epidemiology of Cardiovascular Disease Team, University de Paris, Paris, France.  MedicalResearch.com: What is the background for this study? Response: It is well known that physical activity (PA) is beneficial for cardiovascular health. However, little consideration is given as to whether different domains of PA have differing associations with health outcomes. Indeed, recent work has shown that high amounts of PA at work are associated with increased risk of early death, however the underlying mechanisms are unknown. In this study, we explored the relationship between physical activity at work, during leisure time and as structured sport with baroreflex sensitivity. We distinguished between the mechanical (dependent on the stiffness of the arterial wall) and neural (nerve impulses sent by the receptors on the walls of the artery) components of the baroreflex. Importantly, baroreflex sensitivity is crucial for short- term blood pressure control and reduced baroreflex function is related to higher risk of cardiac mortality and sudden death.  (more…)
Author Interviews, Blood Pressure - Hypertension, Obstructive Sleep Apnea / 13.09.2019

MedicalResearch.com Interview with: Mireia Dalmases Cleries, MD Hospital Universitari Arnau de Vilanova and Santa Maria Group of Translational Research in Respiratory Medicine Lleida, Cataluña, Spain MedicalResearch.com: What is the background for this study? Response: Obstructive sleep apnea has been associated with poor blood pressure control and resistant hypertension. Moreover, it has been described that its treatment with continuous positive pressure (CPAP) could be an effective means of controlling blood pressure in this population. Nevertheless, studies assessing OSA prevalence, characteristics and association with blood pressure control in resistant hypertensive patients are limited and that’s the reason why we decided to perform this study. (more…)
AHA Journals, Author Interviews, Blood Pressure - Hypertension, University of Pennsylvania / 09.09.2019

MedicalResearch.com Interview with: Jordana Cohen, MD, MSCE Assistant Professor of Medicine and Epidemiology Renal-Electrolyte and Hypertension Division Center for Clinical Epidemiology and Biostatistics Perelman School of Medicine University of Pennsylvania MedicalResearch.com: What is the background for this study? Response: In the June 18, 2019 issue of Annals of Internal Medicine, we published a systematic review and meta-analysis evaluating the cardiovascular risks of white coat hypertension (WCH; i.e. elevated office blood pressure and normal out-of-office blood pressure). The goal of the meta-analysis was to clarify previous mixed results regarding the risks of untreated WCH and treated WCH. The meta-analysis examined 27 studies – including 64,273 patients – and demonstrated that untreated WCH is associated with an increased risk of cardiovascular events (36%), all-cause mortality (33%), and cardiovascular mortality (109%) compared to normotension. This risk was strongest in studies with a mean age ≥55 years or that included participants with cardiac risk factors, such as diabetes and chronic kidney disease. We found no increased cardiovascular risk associated with treated white coat hypertension. (more…)
AHA Journals, Author Interviews, Blood Pressure - Hypertension, Technology / 07.08.2019

MedicalResearch.com Interview with: Kang Lee, PhD Dr Eric Jackman Institute of Child Study University of Toronto Toronto, Canada MedicalResearch.com: What is the background for this study? Response: We use a technology called transdermal optical imaging I and my postdoc invented to record facial blood flow using a regular video camera on the smartphone. This technology capitalizes on the fact that light travels beneath the facial skin and reflect off the hemoglobin under the skin. Our technology captures the minute reflected photons to decode facial blood changes due to our pulses and other physiological activities. Using machine learning, a neural network model learns to use the facial blood flow to predict blood pressures taken with a FDA approved scientific blood pressure measurement instrument. We then use the final model to predict the blood pressures of a new group of participants whose data had never been used in the model training. (more…)
Author Interviews, Blood Pressure - Hypertension, JAMA, Stroke / 29.07.2019

MedicalResearch.com Interview with: "Blood Pressure Monitor" by Medisave UK is licensed under CC BY 2.0Kazuo Kitagawa, MD PhD Department of Neurology Tokyo Women's Medical University Tokyo, Japan MedicalResearch.com: What is the background for this study? What are the main findings Response:   Reduction in blood pressure (BP) reduces the rates of recurrent stroke, but the optimum BP target remained unclear. The results of RESPECT Study together with up-dated meta-analysis showed the benefit of intensive blood pressure lowering (<130/80 mmHg) compared with standard BP lowering (<140/90 mmHg).  (more…)
Author Interviews, Blood Pressure - Hypertension, Heart Disease, JAMA / 12.07.2019

MedicalResearch.com Interview with: Dr Kazem Rahimi Deputy Director of the George Centre for Healthcare Innovation James Martin Senior Fellow in Essential Healthcare Honorary Consultant Cardiologist at the John Radcliffe Hospital Deputy Director of the George Institute for Global Health MedicalResearch.com: What is the background for this study? Response: In the last century, we have witnessed a dramatic change in the spectrum of valvular heart disease and the prevalence of this condition has been rapidly increasing, due to population ageing, with poor patient outcomes and high healthcare costs associated with the only effective treatment available, which is valve repair or replacement. However, modifiable risk factors for valvular heart disease remain largely unknown, which limits prevention and treatment. We used a state-of-the-art, gene-based method called Mendelian randomization to determine the causality of the association between systolic blood pressure and risk of valvular heart diseases.  (more…)
Author Interviews, Blood Pressure - Hypertension, NEJM, Race/Ethnic Diversity / 20.03.2019

MedicalResearch.com Interview with: Dike B. Ojji, M.D., Ph.D, FWACP, FACP Department of Medicine Faculty of Clinical Sciences University of Abuja MedicalResearch.com: What is the background for this study? Response: We decided to do this research because there were no large RCTs before now that have compared the efficacy of contemporary combination therapies among any black populations in spite of the high burden of hypertension and its complications (such as heart failure, cerebrovascular accident and chronic kidney) in this population, and also the fact that majority require 2 or more medications to control their blood pressure. (more…)
Author Interviews, Blood Pressure - Hypertension, JAMA / 12.03.2019

MedicalResearch.com Interview with: Alexander A. Leung, MD, MPH Department of Community Health Sciences Department of Medicine University of Calgary Calgary, Alberta, Canada MedicalResearch.com: What is the background for this study? Response: The 2017 American College of Cardiology and American Heart Association (ACC/AHA) blood pressure guidelines redefined hypertension according to a blood pressure cutoff of ≥130/80 mm Hg, compared to the traditional cutoff of ≥140/90 mm Hg. (more…)
AHA Journals, Author Interviews, Blood Pressure - Hypertension, Exercise - Fitness / 22.02.2019

MedicalResearch.com Interview with: Michael J. Wheeler Baker Heart and Diabetes Institute Melbourne, Victoria, Australia MedicalResearch.com: What is the background for this study? What are the main findings? Response: We conducted this study because separate lines of inquiry have determined that a bout of exercise can acutely lower blood pressure, and more recently that prolonged sitting can increase blood pressure over the space of a day. We wanted to know whether the blood pressure lowering effects of an exercise bout would be diminished by a subsequent period of prolonged sitting or enhanced by a subsequent period of sitting that is regularly interrupted with short walking breaks. We found an additive blood pressure lowering effect when exercise was combined with breaks in sitting as opposed to exercise plus prolonged sitting. However, this was only true for women. Men had equal blood pressure lowering effects following exercise regardless of whether-or-not subsequent sitting was interrupted (more…)
Author Interviews, Beth Israel Deaconess, Blood Pressure - Hypertension, Salt-Sodium / 13.02.2019

MedicalResearch.com Interview with: Stephen P. Juraschek, MD, PhD Assistant Professor, Harvard Medical School Beth Israel Deaconess Medical Center Division of General Medicine, Section for Research Boston, MA  02215 MedicalResearch.com: What is the background for this study? What are the main findings? Response: Lightheadedness with standing is an important risk factor for falls. Sodium is often considered a treatment for lightheadedness with standing. We examined this in the setting of a monitored feeding study where adults ate each of 3 different sodium levels for 4 weeks at a time. Participants took 5 day breaks between sodium levels and ate the sodium levels in random order. We tested the hypothesis that lowering sodium would worsen how much lightheadedness the study participants reported. (more…)